Z973F, Z973H electric knife gate valve (knife gate valve): electric drive, wafer connection, rising rod parallel rigid single gate, Z973F valve seat sealing surface material is fluorine plastic, Z973H valve seat sealing surface material is stainless steel, nominal pressure PN6~16, the valve body material is carbon steel gate valve.
Equipped with a multi-turn electric device, which makes the valve plate move up and down linearly, and can realize remote control of valve opening or closing. Diameter range: DN50~DN500, operating temperature ≤100℃, widely used in drainage, heating, power station, chemical, food, paper, pharmaceutical, coal, mining and other projects.
Installation and debugging method of electric gate valve: 1. The electric gate valve can be installed on the horizontal pipeline or the vertical pipeline. The single and double gate valve should be installed on the horizontal pipeline, and the handwheel should be located above the valve. It is not allowed to install downwards. The flow direction of the gate valve medium is not restricted.
2. The electric gate valve usually adopts flange connection, and it is also useful for welding connection in special occasions.
3. For large-diameter and high-pressure gate valves, the opening and closing torque is relatively large. In order to reduce the opening and closing torque, a bypass valve can be installed. The bypass valve is installed outside the main gate valve, and its inlet and outlet are connected to both sides of the main gate valve, and are connected. The bypass valve should be opened before the main gate valve is opened. After entering the valve, the pressure difference between the front and rear of the main gate valve's gate plate is reduced, thereby reducing the opening torque of the main gate valve. The size of the bypass valve should be selected according to the size of the main valve and the requirements for use.
4. The electric gate valve is a shut-off valve, and its sealing performance is not as good as that of a shut-off valve. The main "duty" of the gate valve is "stop flow", and with the smallest resistance: "continuous flow". It is not suitable for adjusting the flow and pressure of the medium. If used for long-term adjustment, the sealing surface is easily eroded and worn by the medium, which affects the sealing performance.
5. The medium temperature and pressure of the electric gate valve should pay attention to the reliability of use. At high temperature and high pressure, the ram may die due to temperature changes, and at the same time, the uneven temperature of the medium everywhere makes it easy to produce leaks. Wedge type but the gate valve is particularly obvious.
6. Pay attention to the phase sequence of the power supply when powering on for the first time. The correct operation method is to manually open the gate valve to the maximum position, and then jog the switch valve, after adjusting the valve stroke (contact the manufacturer for specific adjustment methods) , Before normal operation